Package and method of making the same



Aug. 10, 1937. w. H. JAENICKE PACKAGE AND METHOD OF MAKING THE SAMEFiled Jan. 17, 1936 INVENTOR WILL/14M l1- JqE /6 14/5 ATTOR N EYPatented Aug. 10, 1937 UNITED STATES PACKAGE AND METHOD OF MAKING THESAME William H. Jaenicke, San Francisco, Calif. Application January 17,1936, Serial No. 59,611

Claims.

My invention relates to a sealed package; and an object of the inventionis to provide a package for material of a delicate or perishable naturewhich is moisture proof and air tight.

Another object of the invention is the provision of a package of thecharacter described which lends itself to rapid production on automaticmachinery of relatively simple character, most of which is already wellknown.

Still another object of the invention is the provision of a packagecharacterized by a thoroughly tight closure and low cost of production.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, will be set forth in the followingdescription of my invention. It is to be understood that I do not limitmyself to this disclosure of species of my invention, as I may adoptvariant embodiments thereof within the scope of the claims.

Referring to the drawing:

Figure 1 is a perspective view of a package em- .bodying my invention.The parts are shown near the beginning of the folding operations thatform the sealed package. Portions are broken away to disclose thestructure.

Figures 2 and 3 are perspective views of the package showing successivepositions in the folding of the parts.

Figure 4 is a fragmentary view partly in vertical section, and showingthe position of the parts of the package when sealed.

There are many articles of commerce, especially certain food products,which are sensitive to surrounding conditions so that they must be pro-5 tected against moisture, foreign flavors and other influences whichwould affect their quality or the condition in which they reach theconsumer,

Many of these food products are packed in glass or metal cans, but it isobvious that the cost of such packaging is relatively high, and thatsuch protection is desirable for many materials which must be cheaplypacked. Powdered and brown sugars, various sorts of flour products,especially those including self raising ingredients, and

fudge or candy making preparations are only a few of the materials whichwill take or give up moisture or absorb added flavors or loose flavor ifnot protected by a tight sealing within a tight container. It is thebroad purpose of my invention to provide a method and means ofaccomplishing this result inexpensively.

In terms of broad inclusion, the package of my invention comprises anouter carton having inner and outer cover flaps, and a liner bag adaptedto fit within the carton and having its open end closed and folded backupon itself to form a seam which lies between the inner and outer flaps.Means, conveniently an adhesive, are provided to secure the cover flapstogether so that the seam is pressed between the cover flaps. Additional5 security is obtained by the fact that the upper portion of the bagimmediately below the seam is drawn tightly around the free edge of theinner flap.

Describing in detail the embodiment of my in- 10 vention illustrated inthe drawing; a carton 2 is provided for the outer enclosure of thepackage. This carton may be of any suitable material such as paper boardand is of any suitable size and shape. The ends of the carton are closedby the 15 usual cover flaps and in Figure 1, the inner side flap 3 isshown folded down over the end flaps 4, the outer side flap 6 extendinghorizontally to the rear.

Within the enclosing carton is a liner bag 1 within which is thecontents of the package which may be assumed to be a fudge powderparticularly sensitive to changes in humidity of the surrounding air andcapable of ruinous changes in flavor by loss or absorption. I prefer touse a laminated bag having glassine paper for the inner layer and tinfoil for the outer layer, because of the excellence of the protection itaffords, and also because the foil contributes to the fixity of thecreases in the closure. Other types of bags such as parchment or paperimpregnated with parafiine may also be used with success.

The bag is inserted in the carton and filled, and then the upper portionis collapsed to one side. The end flaps 4 and the inner side flap 3 arethen turned in so that the parts appear as in Figure 1. Next the freeend of the bag is folded over on itself along a line indicated in Figure1 by the dotted line 8, so that both sides or walls of the bag arecaught in the fold or seam 9 thus formed, as shown in Figure 2.Preferably the seam is then compressed to sharpen or fix the crease andhold the bag walls tight together in the seam.

A suitable adhesive l I is then applied over a selected area of or overthe whole area of the outer side flap 6, Figure 2, and the flap turnedup and in, as indicated in Figure 3, to seat upon the inner flap 3. Thisfolding in of the outer flap carries with it the seamed upper end of thebag, pulling the bag sides [2 just below the seam, against the free edgel3 of the inner flap and pressing the seam 9 between the two flaps 6 and3. The outer flap is held firmly against the inner flap for a momentuntil the adhesive layer il sets, when the package is complete.

The relation of the parts is clearly shown in Figure 4 where theproportion of the adhesive layer and other parts is somewhat out ofscale 5 for the sake of clarity. It is to be noted that the open end ofthe bag has been rendered doubly tight, first and chiefly by the sharpcrease and seam, and secondly in the fixing of the seam by catching itbetween the two cover flaps. Since the inner end flaps 6 provide addedsupport for the free end of the inner side flap 3; and the outer sideflap is adhesively united to the inner side flap, it follows that theseam 9 is retained in the tight fold with which it is formed, andentrance into or exit from the bag completely blocked.

Thus odors or moisture from the adhesive or from other sources arepositively excluded from the bag and the packaged product reaches theconsumer in exactly the same condition in which it was packed and sealedup, with no loss of flavor or moisture content, and no acquisition ofmoisture or foreign flavors.

26 While I have explained the method of sealing as carried out by manualmanipulation, it is manifest that in commercial production, suitableinstrumentalities are devised for the automatic handling of thepackagesand all the steps of 30 filling, folding and sealing.

I claim:

1. A package comprising a carton having inner and outer cover flaps, aliner bag for the carton having opposite sides of the bag at the openend folded back to form a seam and lying between the inner and outerflaps.

2. A package comprising a carton having inner and outer cover flaps, aliner bag for the carton having opposite sides of the bag at the openend folded back to form a seam and extending around the free edge of theinner flap and between the inner and outer flaps.

3. A package comprising a carton having inner and outer cover flaps, aliner bag for the carton having opposite sides of the bag at the openend folded back to form a seam and lying between the inner and outerflaps, and means for securing the two flaps together.

4. A package comprising a carton having inner and outer cover flaps, aliner bag for the carton having opposite sides of the bag at the openend folded back to form a seam and extending around the free edge of theinner flap and between the inner and outer flaps, and an adhesiveinterposed between the free edge of the outer cover flap and the innercover flap.

5. The method of sealing the mouth of a bag liner in a carton havinginner and outer cover flaps which comprises closing the inner cover flapwith the closed open end of the bag extending past the free edgethereof, folding the closed open end of the bag sharply back upon itselfto form a seam, applying adhesive to one of the cover flaps, and foldingover the outer cover flap to press the seam between the flaps andadhesively unite the flaps.

M H. JAENICKE.

